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<div class=ts15p0><span class="ft0p15"> </span></div>
<div class=ts15p1><span class="ft0p15">Gravitybox Schedule Primer<span class="ft1p15"> </span></span></div>
<div class=ts15p3><span class="ft0p15">Page 13&nbsp; </span></div>
<div class=ts15p7><span class="ft2p15"> </span></div>
<div class=ts15p8><span class="ft3p15"> </span></div>
<div class=ts15p9><span class="ft4p15">1998&#45;2004 Gravitybox Software LLC<span class="ft3p15"> </span></span></div>
<div class=ts15p13><span class="ft5p15">Chapter 1 </span></div>
<div class=ts15p15><span class="ft6p15">The GbSchedule Object Model </span></div>
<div class=ts15p17><span class="ft7p15">The Gravitybox Schedule has an extensive object model. It may seem complex at first </span></div>
<div class=ts15p18><span class="ft7p15">but is actually very intuitive. There are seven main collections. Each holds some part of </span></div>
<div class=ts15p19><span class="ft7p15">the information to be displayed on the screen. </span></div>
<div class=ts15p22><span class="ft7p15"> </span></div>
<div class=ts15p23><span class="ft6p15">ScheduleItems </span></div>
<div class=ts15p25><span class="ft7p15">The main collection and the one that you cannot live without </span></div>
<div class=ts15p26><span class="ft7p15">is the ScheduleItems collection. This is the group of </span></div>
<div class=ts15p27><span class="ft7p15">appointments for a schedule. In its simplest form each </span></div>
<div class=ts15p29><span class="ft7p15">object in the collection needs a starting time, date, and length. These three basic </span></div>
<div class=ts15p30><span class="ft7p15">properties are used to display an appointment at its proper position. Many other </span></div>
<div class=ts15p31><span class="ft7p15">properties are also available to define customized attributes of each object, but these </span></div>
<div class=ts15p33><span class="ft7p15">three are the necessary ones for an object to exist. If a schedule is defined as the </span></div>
<div class=ts15p34><span class="ft7p15">display of dates on one axis verses time on the other, then each one of these </span></div>
<div class=ts15p35><span class="ft7p15">ScheduleItem objects has a particular position on which to be placed. </span></div>
<div class=ts15p37><span class="ft7p15"> </span></div>
<div class=ts15p38><span class="ft8p15">Table 1.1 </span></div>
<div class=ts15p40><span class="ft8p15">ScheduleItem Object Definition </span></div>
<div class=ts15p43><span class="ft7p15">Alarm </span></div>
<div class=ts15p45><span class="ft7p15">This property determines if the appointment should raise an </span></div>
<div class=ts15p46><span class="ft7p15">event at its StartTime. If this property is set, there is an icon </span></div>
<div class=ts15p47><span class="ft7p15">displayed in the upper, left corner of the appointment and the </span></div>
<div class=ts15p48><span class="ft7p15">ScheduleItemStart event is raised when the appointment&#146;s </span></div>
<div class=ts15p50><span class="ft7p15">starting time comes due. </span></div>
<div class=ts15p52><span class="ft7p15">AlarmReminder </span></div>
<div class=ts15p54><span class="ft7p15">This property is used to fire the event ScheduleItemReminder </span></div>
<div class=ts15p55><span class="ft7p15">event some time before an appointment comes due. This is a </span></div>
<div class=ts15p56><span class="ft7p15">positive number of minutes. If the Alarm property is true, the </span></div>
<div class=ts15p57><span class="ft7p15">AlarmReminder number minutes is subtracted from the </span></div>
<div class=ts15p59><span class="ft7p15">appointment&#146;s start time. If the calculated time is the current </span></div>
<div class=ts15p60><span class="ft7p15">time, this event is raised. This property basically allows you </span></div>
<div class=ts15p61><span class="ft7p15">to receive an event some time prior to an appointment </span></div>
<div class=ts15p62><span class="ft7p15">starting. This is useful for builder reminders that an </span></div>
<div class=ts15p64><span class="ft7p15">appointment is due in X minutes. </span></div>
<div class=ts15p66><span class="ft7p15">BackColor </span></div>
<div class=ts15p68><span class="ft7p15">This property allows for the specification of a custom </span></div>
<div class=ts15p69><span class="ft7p15">backcolor for the appointment. This may be useful, if you </span></div>
<div class=ts15p70><span class="ft7p15">want a particular appointment to stand out. When an </span></div>
<div class=ts15p71><span class="ft7p15">appointment is created, the backcolor is defaulted to white. </span></div>
<div class=ts15p74><span class="ft7p15">BlackOut </span></div>
<div class=ts15p76><span class="ft7p15">This property allows an appointment to be into a placeholder. </span></div>
<div class=ts15p77><span class="ft7p15">The BlackOutColor will determine the appointment&#146;s color. </span></div>
<div class=ts15p78><span class="ft7p15">No text will be displayed on the appointment and the user </span></div>
<div class=ts15p79><span class="ft7p15">may not move, copy, or perform any operation on it. </span></div>
<div class=ts15p82><span class="ft9p15">Quick Tip </span></div>
<div class=ts15p84><span class="ft10p15">Appointments are stored in the </span></div>
<div class=ts15p85><span class="ft10p15">ScheduleItems collection. </span></div>
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